A backward glance. Arriving at the punched-card system.
Herman Hollerith's punched-card machine for the US Census office consisted of: a bank of counters for tabulating results; a hand-operated reader that pushed wire contacts through the holes in the card into pools of mercury, completing an electrical circuit; and a sorting box with bins for holdi...
| 发表在: | IEEE spectrum 37, 2 (2000). |
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| 格式: | 文件 |
| 语言: | English |
| 主题: |